Hopefully not too many babies have cancer, aids, and organ transplants.
"wiping out a previous immunity" doesn't sound like an immunity to me.
Which begs the question, why do we make an exception with vaccines? It seems like vaccines are being presented as completely safe & completely effective by some proponents.
You see nuance in this issue, but then, why are critics of vaccines silenced & ridiculed? I thought "nothing in medicine is straightforward"...
No doctor says "everyone should take all vaccines NOW". More info here: https://www.cdc.gov/vaccines/vpd/should-not-vacc.html
No. There's no general solution to the problem of compromised immune systems, because there are many different causes. Some of those causes are infectious diseases that can be controlled through vaccination, so translating your feel-good goal of "promoting strong immune systems" into specific courses of action will include using tools like mass vaccinations. There are no better or more cost-effective ways to prevent diseases like measles, and almost every unvaccinated person exposed to measles develops the disease even if they have a healthy immune system.
One dose (normally scheduled at 12-15 months) is 93% effective, two doses (the second usually scheduled at 4-6 years) are 97% effective, and there are people too young or with other non-stupidity reasons for not having (yet, in the case of age alone) even the first dose, so, no, it's not just stupid people at risk.